When a human jumps, they fall back down onto the ground. This occurs because of gravity, the force that holds humans to the ground, and also holds planets together, and galaxies!
When a fire is lit by matches, it occurs because of friction. Two or more objects rubbing together quickly causes friction, which generates heat, starting a fire.
Ever notice when your cold glass of water gains water on the outside? This is because of condensation. The temperature of the glass and the water together creates this.
